Christian p



(No Model.)

C. P. KDLM.

GAS REGULATOR. No. 420,726. Patented Feb. 4, 1890.

N. Pains Phmumampm. wmnsm", b. c.

UNITED STATES ATENT OFFICE.

OHRISTAN Pl KOLM, OF KNAPPS. CREEK, NEW YORIQ'ASSIGNOR TO JACOB L. MCKENZIE, OF SAME PLACE.

GAS-REGULATOR.

SPE{I}I'"ICA'..`IO\T forming part o'f Letters' Patent No. 420,726, dated February 4, 1890. Application had May 2s, 1889. serai No. 311,856. ai@ moda.)

To all whom, t may concern: I h is the stem of the valve, which is guided Be it known that I, CHRISTIAN P. KOLM, in a socket or cap t', arranged in the outer a citizen of the United States, residing at side of the casing A. Knapps Creek, in the county of Oattaraugus t" is a spiral spring arranged in the inletf. 5 and State of New York, have invented new chamber B and interposed between the face and useful Improvements in Gas-Regulators, of the regulating-valve g and the adjacent of which the following is a specification. inner wall of the chamber B. The spring t" This invention relates to a pressure-regir tends to press the regulating-valve away lator for controlling the passage of gas from its seat and open the passage c. f

vIo through a supply-pipe, and more particularly j represents a shifting-leverpivoted within to a regulator which is especially desirable the casing A and bearing with its outer long for regulating the supply of natural gas to arm against the rear side of the regulatingranges and other stoves. valve g. The outer end of this lever is pref- The object of my invention is to construct erably bifurcated and straddles the stem of I5 a simple and sensitive regulator of this class the regulating-valve, as shown in Figs. 2 and which is readily attached to a stove. 4. Thelever j swings in a plane parallel with The invention consists of the improvethe direction in which the valve g moves, so ments which will be hereinafter fully set that upon swinging the lever in the proper forth, and pointed out in the claims. direction it willmove the valve toward its 7o 2o In the accompanying drawings, Figure l is seat against the pressure of the spring fi.

a vertical section of my improved regulator K represents an expansible actuating-rody applied to a stove-pipe. Fig. 2. is a horizonpassing transversely through the interior of tal section thereof, partly in elevation. Fig. the stove-pipe F, so as to be exposed to the 3 is a vlongitudinal section of the discharge heat therein. The inner end of this rod en- 75 z 5 end of the regulator in line 0c 0c, Fig. 2. Fig. ters the side of the inner chamber B through 4 is a longitudinal section ot' the casing of a stuffing-box 7c and bears against the inner the regulating-valve in line y y, Fig. 2. arm k of the shifting-lever j, as represented Like letters of reference refer to like parts in Fig. 2. The outer portion of the rod 1s in the several -Iigures. screw-threaded and secured in a threaded 8o 3o A represents the casing of the regulator opening formed in a boss l, arranged in the proper, which is divided into an inletchamend portion of the discharge-pipe E of the loer B and an outlet-chamber B by a partiregulator. The expansible rod is held against tion b, having an opening or passage c, lengthwise movement in the boss l, and is whereby the two chambers are placed inclamped therein by a jam-nut Z', applied to 85 35 communication with each other, as reprethe projecting outer portion of the rod and sented in Fig. 2. bearing against the adjacent portion of the d represents the inlet-pipe of the regulapipe E. tor, connected with the source of supply and The 'expansible rod K is constructed of cophaving the usual shut-oft cock, (which is not per or other metal possessing the expansible 4o shown in the drawings,) and E is the disproperty in a high degree, so that it will charge-pipe connecting the regulator with readilyexpandorcontract asthe temperature the burner in the stove, and extending prefin the stove-pipe rises or falls. The rod, beerably around the stove-pipe F, so as to form ing secured at its outer end and free to move with the regulator proper ka U-shaped frame, at its inner end, will elongate toward the 45 as shown in Fig. 2. lever j when the temperature increases, andl g represents a regulating-valve located in thereby swing the lever j on its pivot and the outlet-chamber B and controlling the cause it to move the regulating-'Valve g t0- passage of the gas through the opening c. ward its seat, decreasing the size of the pas- This valve is preferably conical or beveled, sage c and reducing the supply of gas to the 5o and the opening c is provided with a corre- .pipe E. As the rod again contracts by a spondingly-beveled valve-seat, as shown. fall in the temperature it moves away from the lever and allows the spring t" to again open the valve farther till the contraction of the rod ceases and the movement of the lever is arrested. When a normal amount of gas is consumed, the heat in the stove-pipe F is normal, and the expansion of the rod K is just sufficient to leave the valve open to the required extent to allow of a normal supply of gas to the burner. When the supply is excessive, the temperature rises above the normal point and the actuating-rod expands, thereby causing the regulating-valve g to move toward its seat and diminishing the supply of gas to the burner. As the temperature again falls the rod contracts and allows the spring i to open the valve to a greater extent, thereby again increasing the supply. The gas-supply is thus regulated and kept uniform by the expansion and contraction of the rod K, the supply being reduced when the temperature rises above the normal and increased when it falls below the normal.

The device is regulated to the approximate normal supply desired by adjusting' the inner end of the expansible rod K with reference to the inner end of the shifting-lever j, so as to properly limit the range of movement of the valve to open the valve to the required extent. This adjustment is accomplished by loosening the jam-nut Z and turning the rod and then again tightening the jam-nut. The expansible rod is provided with a hand-wheel or other means for turning it.

My improved regulator is readily applied to a stove-pipe at comparatively small expense, and requires no separate supportingframe, it being only necessary to form openings in opposite sides of the stove-pipe for the passage of the expansible rod.

I am aware that the dampers of stoves and the Ventilating-valves of incubators have been automatically regulated by means of thermostatic rods. I am also aware that the valves or cocks of water-pipes have been automatically operated by means of a thermostatic rod, so as to prevent freezing of the water in the pipes when the temperature falls to a point at which the water is liable to freeze. I do not therefore desire to claim suoli devices.

I claim as my inventionl. The combination, with a stove pipe or fine, of a gas-supply pipe, a regulator-casing arranged in said supply-pipe and provided with a gas-passage, a regulating-valve arranged in the easing and controlling its gas,- passage, and an expansible rod arranged in the stove-pipe projecting into said regulatorcasing and operating said regulating-valve, substantially as set forth.

2. The combination, with a stove pipe or fine, of a gas-supply pipe, a regulator-Casin g arranged in said supply-pipe and provided with a gas-passage, a regulating-valve arranged in the casing and controlling the gaspassage thereof, a shifting-lever pivoted in the casing and operating said valve, and an expansible rod arranged in the stove-pipe projecting' into the regulator-casing and operating upon said shifting-lever, substantially as set forth.

3. The combination, with a stove pipe or flue and a gas-supply pipe extending around the stove-pipe, of a regulator-casing arranged in the supply-pipe and having a gas-passage, a regulating-valve controlling said passage, and an expansible rod passing through the stove-pipe and adj ustably secured at its outer end to the gas-supply pipe and projecting with its inner end into the regulator-casin g and operating the regulating-valve, substantially as set forth.

fitness my hand this 13th day' of May, 1889.

CHRISTIAN P. KOLM.

VitnesSeS:

M. M. DYE, J. L. MCKINZIE. 

